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86479011979 = 109881900551
BaseRepresentation
bin101000010001010001…
…1010000000010001011
322021012212111222120121
41100202203100002023
52404102111340404
6103421121204111
76151013321233
oct1204243200213
9267185458517
1086479011979
1133748169738
1214915790637
138202517909
144285438cc3
1523b21c5e54
hex14228d008b

86479011979 has 8 divisors (see below), whose sum is σ = 87371555040. Its totient is φ = 85588272000.

The previous prime is 86479011967. The next prime is 86479011991. The reversal of 86479011979 is 97911097468.

It is an interprime number because it is at equal distance from previous prime (86479011967) and next prime (86479011991).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86479011979 - 217 = 86478880907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86479011929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354247 + ... + 546304.

It is an arithmetic number, because the mean of its divisors is an integer number (10921444380).

Almost surely, 286479011979 is an apocalyptic number.

86479011979 is a deficient number, since it is larger than the sum of its proper divisors (892543061).

86479011979 is a wasteful number, since it uses less digits than its factorization.

86479011979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901541.

The product of its (nonzero) digits is 6858432, while the sum is 61.

The spelling of 86479011979 in words is "eighty-six billion, four hundred seventy-nine million, eleven thousand, nine hundred seventy-nine".

Divisors: 1 109 881 96029 900551 98160059 793385431 86479011979